Perhaps you should try some spelling variations:
"fop petrov OR petroi OR petru OR petruo OR peruo OR petriio OR petr OR peter o.s.*" » "fop petro OR petroi OR petru OR petruo OR peruo OR petriio OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petri OR petru OR petruo OR peruo OR petriio OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petro OR petru OR petruo OR peruo OR petriio OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petrow OR petru OR petruo OR peruo OR petriio OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petroi OR pentru OR pentruo OR peruo OR petriio OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petroi OR petri OR petrio OR peruo OR petriio OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petroi OR petru OR petro OR peruo OR petriio OR petr OR peter o.s.*" (Expand Search), "fop petriov OR petrioi OR petriu OR petriuo OR peruo OR petriiio OR petri OR peter o.s.*" (Expand Search), "fop petroov OR petrooi OR petrou OR petrouo OR peruo OR petroiio OR petro OR peter o.s.*" (Expand Search), "fop perov OR peroi OR peru OR peruo OR peruo OR periio OR per OR peter o.s.*" (Expand Search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: fop (petrov OR ((((petroi OR petru) OR (petruo OR peruo)) OR petriio) OR (petr OR peter))) o.s.*.